CN108051168B - A kind of reciprocation sealing multi loading device - Google Patents

A kind of reciprocation sealing multi loading device Download PDF

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Publication number
CN108051168B
CN108051168B CN201711163873.4A CN201711163873A CN108051168B CN 108051168 B CN108051168 B CN 108051168B CN 201711163873 A CN201711163873 A CN 201711163873A CN 108051168 B CN108051168 B CN 108051168B
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China
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vibration
table top
connecting rod
sliding block
driving cylinder
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CN108051168A (en
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郭生荣
周清和
李述林
欧阳小平
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AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
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AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/02—Vibration-testing by means of a shake table
    • G01M7/06—Multidirectional test stands
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/02—Vibration-testing by means of a shake table
    • G01M7/022—Vibration control arrangements, e.g. for generating random vibrations

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses a kind of reciprocation sealing multi loading devices.Including drive part and angular adjustment part, drive part drives test cylinder (jar) to move by driving cylinder, and the two parallel connection is rigidly connected by connecting rod, while unbalanced-loading preventing structure is arranged；Angular adjustment is partially disposed on vibration table, is changed angle by substituting support construction, is realized that single vibration is decomposed into axial direction+radial vibration.The present invention solves the technical problem of existing apparatus, direction vibration is realized by uniaxial shake table, driving cylinder and test cylinder (jar) are arranged in a limited space and realizes that unbalance loading is handled, and reduce the quality and volume of test assembly on vibration table, adequately to lower the type selecting standard of shake table.

Description

A kind of reciprocation sealing multi loading device
Technical field
The invention belongs to hydraulic reciprocating field of sealing technology, and in particular to a kind of reciprocation sealing multi loading device.
Background technique
Recently as a large amount of rises of China's Aircraft Project, relevant research for matching experimental work also starts to open up successively It opens.Currently, hydraulic actuator studies the performance of its dynamic seal for actuator and is as actuator main on aircraft Safety, reliability, maintainability and the service life of system have great influence.For active service and the following Advanced Aircraft hydraulic system The target of " highly reliable, long-life, quasi- prediction ", it is necessary to the actual condition simulation test of height is carried out to practical sealing structure. Airplane hydraulic pressure actuator sealing element is primarily subjected to the complex working conditions such as high pressure, speed change, high/low temperature and vibration environment, it is domestic at present for Sealing element test under high pressure, speed change, high and low temperature environment is relatively more, when for another operating condition --- and being related to for vibration is less.Fly The vibration operating condition of machine belongs to the random vibration of 20~2000Hz mostly, and vibration acceleration is in 0~20g etc., a large amount of aircraft member Different degrees of damage has occurred in device under the vibration operating condition of high frequency, therefore in order to ensure the reliable execution of actuator, has Necessity carries out the correlation test under line to sealing element and measures the size of frictional force for the simulation of sealing element full working scope.Because making Dynamic cylinder is cylindrical, therefore we need to only discuss the axial vibration with radial direction, however two axis while the shake table vibrated in practice It is uncommon and with high costs, thus we there is an urgent need to a reasonable vibration test schemes.
Summary of the invention
It is an object of the invention to propose one to solve the problems, such as that vibration environment present in background technique is difficult to simulate Kind reciprocation sealing multi loading device.
The technical solution adopted by the present invention is that:
The present invention includes angular adjustment part and drive part；The angle adjustment point includes inclined table, table top Fastening nut, table top interchangeable mount, vibration table, table top hold-down support；Inclined table bottom and middle part pass through two to top Locked table top fastening nut is connected respectively to the top of table top hold-down support and table top interchangeable mount, table top hold-down support and platform Face interchangeable mount bottom is fixed on vibration table, and inclined table inclination is fixed on above vibration table, and vibration is connected on vibration table Dynamic source, vibration source drive vibration table to vibrate up and down；Drive part is installed on inclined table.
The table top interchangeable mount overhead height is higher than the overhead height of table top hold-down support, so that inclined table tilts It is fixed on above vibration table.
The present invention by the table top interchangeable mount of replacement different height, may be implemented inclined table and vibration table table top it Between angle adjustment.
By being obliquely installed between inclined table and vibration table, so that the vibration load of vibration table is transferred to inclination It is formed to vibrate up and down on table top and be loaded with the multi of horizontal vibration, formed and the real simulation of hydraulic actuator is tested.
The drive part mainly includes connecting rod, pull pressure sensor, test cylinder (jar), driving cylinder and guide rod；Test cylinder (jar) It is fixed on inclined table with driving cylinder by respective hydraulic cylinders bearing, guide rod is locked by locking nut in guide bar receiver Top, guide bar receiver bottom are fixed on inclined table, test cylinder (jar) test cylinder piston rod, driving cylinder driving cylinder piston rod and Guide rod is close to parallel arrangement, and connecting rod side movable set is in the upper end of guide rod, and connecting rod is perpendicular to guide rod arrangement, connecting rod The first sliding block is set with outside middle part, the first sliding block is hinged through the first articulated joint and driving cylinder piston rod end；The connecting rod other end It is set with the second sliding block outside, the one end of the second sliding block through the second articulated joint and connecting shaft is hinged, and the connecting shaft other end is through pressure Sensor and test cylinder piston rod are coaxially connected, so that test cylinder piston rod, driving cylinder piston rod and guide rod pass through connection Bar links together.
Driving cylinder makees active movement, drives the first sliding block to move along driving cylinder piston rod telescopic direction through the first articulated joint, First slide block movement drives connecting rod to be axially moved along guide rod, drives the second sliding block along the flexible side of test cylinder piston rod through connecting rod To movement, the reciprocation sealing Motion loading to test cylinder (jar) is realized.
Since the first sliding block, the second sliding block are movable set connection between connecting rod respectively, so that vibration load Motion process avoids the occurrence of to form statically indeterminate structure.
Driving cylinder piston rod is connected by the first articulated joint, the first sliding block between connecting rod, test cylinder piston rod and drawing Pressure sensor, the second articulated joint, the second sliding block are connected with connecting rod, and guide rod is fixed among test cylinder (jar) and driving cylinder, are connected Bar can be axially moved along guide rod, be play the guiding role, and be eliminated since test cylinder piston rod is the same as driving cylinder piston rod parallel arrangement institute's band The influence for the unbalance loading torque come.
The test cylinder (jar) is optical axis without piston hydraulic cylinder, and cylinder body is interior to be full of high-voltage oil liquid；Driving cylinder is normal pair and goes out Bar hydraulic cylinder overcomes two end seal frictional force of test cylinder (jar), drives test cylinder piston rod to move back and forth, is examined by pull pressure sensor Survey frictional force size.
The invention mainly comprises drive part and angular adjustment part, drive part drives test cylinder (jar) to move by driving cylinder, The two parallel connection is rigidly connected by connecting rod, while unbalanced-loading preventing structure is arranged；Angular adjustment is partially disposed on vibration table, is passed through Substitute support construction and change angle, realizes that single vibration is decomposed into axial direction+radial vibration.
The beneficial effects of the present invention are:
The present invention solves the technical problem of existing apparatus, direction vibration is realized by uniaxial shake table, limited Driving cylinder and test cylinder (jar) are arranged in space and realizes that unbalance loading is handled, and adequately reduce the quality and body of test assembly on vibration table Product, to lower the type selecting standard of shake table.
The present invention solves the technical problem of two shaft vibrations while load while reducing experimentation cost, while more preferable Ground adapts to environmental simulation equipment (temperature control box, the volume of shake table, power limited).
The present invention takes driving cylinder to be arranged in parallel with test cylinder (jar) while reducing volume and quality as far as possible, and Devise corresponding unbalanced-loading preventing structure and imitate stuck mechanism, solve respectively two axis non-colinears load unbalance loading torque influence and Reduce the requirement of the installation site depth of parallelism.Its structure is simple, meets the requirement of pilot system.
Detailed description of the invention
Fig. 1 is overall setup schematic diagram of the present invention.
In figure: 101. inclined tables；102. table top fastening nut；103. table top interchangeable mount；104. vibration table；105. Table top hold-down support；201. connecting rod；202. test cylinder piston rods；203. pull pressure sensor；204. hydraulic cylinders bearing；205. Test cylinder (jar)；206. first articulated joints；207. driving cylinder piston rods；208. driving cylinder；209. guide bar receiver；210. guide rod；211. Locking nut；212. connecting shaft；213. second articulated joints；214. second sliding blocks；215. first sliding blocks.
Fig. 2 is that stuck schematic diagram of mechanism is imitated in present invention driving.
Fig. 3 is test cylinder (jar) structural schematic diagram of the present invention.
Fig. 4 is inclined table tilt angle analysis chart of the present invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
As shown in Figure 1, present invention specific implementation includes angular adjustment part and drive part.
As depicted in figs. 1 and 2, angle adjustment point includes inclined table 101, table top fastening nut 102, the interchangeable branch of table top Seat 103, vibration table 104, table top hold-down support 105；101 bottom of inclined table and middle part pass through two platforms locked to top Face fastening nut 102 is connected respectively to the top of table top hold-down support 105 and table top interchangeable mount 103, table top hold-down support 105 It is fixed on vibration table 104 with 103 bottom of table top interchangeable mount, 103 overhead height of table top interchangeable mount is higher than the fixed branch of table top The overhead height of seat 105, so that the inclination of inclined table 101 is fixed on 104 top of vibration table.Vibration is connected on vibration table 104 Dynamic source, vibration source drive vibration table 104 to vibrate up and down；Drive part is installed on inclined table 101.
As depicted in figs. 1 and 2, drive part mainly includes connecting rod 201, pull pressure sensor 203, test cylinder (jar) 205, drives Dynamic cylinder 208 and guide rod 210；Test cylinder (jar) 205 is fixed on inclined table 101 by respective hydraulic cylinders bearing 204 with driving cylinder 208 On, guide rod 210 is locked by locking nut 211 at the top of guide bar receiver 209, and 209 bottom of guide bar receiver is fixed on tilting table On face 101, the test cylinder piston rod 202 of test cylinder (jar) 205, the driving cylinder piston rod 207 of driving cylinder 208 and guide rod 210 are close flat Row arrangement, 201 side movable set of connecting rod is arranged in the upper end of guide rod 210, connecting rod 201 perpendicular to guide rod 210, is connected 201 middle part of bar is outer to be set with the first sliding block 215, and the first sliding block 215 is through the first articulated joint 206 and driving 207 end of cylinder piston rod Hingedly；The second sliding block 214 is set with outside 201 other end of connecting rod, the second sliding block 214 is through the second articulated joint 213 and connecting shaft 212 One end it is hinged, 212 other end of connecting shaft through pull pressure sensor 203 and test cylinder piston rod 202 it is coaxially connected so that Test cylinder piston rod 202, driving cylinder piston rod 207 and guide rod 210 are linked together by connecting rod 201.
As shown in figure 3, the test cylinder (jar) 205 is optical axis without piston hydraulic cylinder, cylinder body is interior to be full of high-voltage oil liquid；Driving Cylinder 208 is normal double outlet-rod hydraulic cylinders, overcomes two end seal frictional force of test cylinder (jar), and test cylinder piston rod 202 is driven back and forth to transport It is dynamic, frictional force size is detected by pull pressure sensor 203.
Driving cylinder 208 makees active movement, drives the first sliding block 215 to stretch along driving cylinder piston rod 207 through the first articulated joint 206 The movement of contracting direction, the movement of the first sliding block 215 drive connecting rod 201 to be axially moved along guide rod 210, drive second through connecting rod 201 Sliding block 214 is moved along test 202 telescopic direction of cylinder piston rod, realizes the reciprocation sealing Motion loading to test cylinder (jar) 205.
The specific implementation course of work of the invention is as follows:
Specific implementation process of the invention is now illustrated from the angle of assembly.
The present invention includes angular adjustment part and drive part, and angular adjustment part is mainly by inclined table 101, shake table Face 104, table top interchangeable mount 103, table top hold-down support 105 form, by replacing the table top interchangeable mount 103 of different height, It is fitted on 104 different location of vibration table simultaneously, to realize angle between 104 table top of inclined table 101 and vibration table The adjustment of degree, thus two shaft vibrations in various amplitude ratio that uniaxial vibration decomposition is while being carried out；Drive part is main It is made of connecting rod 201, pull pressure sensor 203, test cylinder (jar) 205, driving cylinder 208, guide rod 210, is driven and tried by driving cylinder 208 Cylinder 205 is tested, realizes the speed change request in sealing element work condition environment.
As shown in figure 4, when assembly, it is first determined the axial (S of test cylinder (jar)axial), diameter (Sradial) Xiang Zhendong amplitude, benefit Shake table vertical direction amplitude (S) and tilting table face angle (θ) are determined with formula (1) and (2), and table top can be obtained using formula (3) The height (h) of interchangeable mount 103 is (between 101 projecting shaft of inclined table joined together by hold-down support 105, table top interchangeable mount 103 Distance be L), finally by a pair of of serrated nut to top --- table top fastening nut is by hold-down support 105, the interchangeable branch of table top Seat 103 tightens together with inclined table 101.
θ=tan-1(Saxial/Sradial) (2)
H=sin (θ) * L (3)
Wherein, L be between hold-down support 105,101 projecting shaft of inclined table joined together by table top interchangeable mount 103 away from From SaxialIndicate the amplitude of test cylinder (jar) axial vibration, SradialIndicate that the amplitude of test cylinder (jar) radial vibration, h indicate that table top can The height of support 103 is changed, θ indicates the inclination angle of inclined table, and S indicates shake table vertical direction amplitude.
Need to install test cylinder (jar) 205, driving cylinder 208, guide rod 210 on inclined table 101, the above two pass through hydraulic cylinders bearing 204 are fastened on inclined table 101, and the latter is fixed on inclined table 101 by guide bar receiver 209.
Test cylinder piston rod 202, driving cylinder piston rod 207 and guide rod 210 are linked together by connecting rod 201.Driving Cylinder piston rod 207 is connected by the first articulated joint 206, the first sliding block 215 between connecting rod 201, test cylinder piston rod 202 with Pull pressure sensor 203, the second articulated joint 213, sliding block 214 with connecting rod 201 connect, guide rod 210 be fixed on test cylinder (jar) 205 with Among driving cylinder 208, connecting rod 201 can be axially moved along guide rod 210, be play the guiding role, and can be eliminated due to testing cylinder piston rod 202 with driving cylinder piston rods 207 be arranged in parallel brought by unbalance loading torque influence.

Claims (3)

1. a kind of reciprocation sealing multi loading device, it is characterised in that: including angular adjustment part and drive part；It is described Angle adjustment point include inclined table (101), table top fastening nut (102), table top interchangeable mount (103), vibration table (104), table top hold-down support (105)；Inclined table (101) bottom and middle part pass through table top fastening nut (102) and connect respectively It is connected to the top of table top hold-down support (105) and table top interchangeable mount (103), table top hold-down support (105) and the interchangeable branch of table top Seat (103) bottom is fixed on vibration table (104), and inclined table (101) inclination is fixed on above vibration table (104), vibration Vibration source is connected on table top (104), vibration source drives vibration table (104) to vibrate up and down；It installs and drives on inclined table (101) Dynamic part；
The drive part mainly includes connecting rod (201), pull pressure sensor (203), test cylinder (jar) (205), driving cylinder (208) and guide rod (210)；Test cylinder (jar) (205) is fixed on inclination by respective hydraulic cylinders bearing (204) with driving cylinder (208) On table top (101), guide rod (210) is locked by locking nut (211) in the top of guide bar receiver (209), guide bar receiver (209) Bottom is fixed on inclined table (101), upper end of connecting rod (201) the side movable set in guide rod (210), connecting rod (201) it is arranged perpendicular to guide rod (210), outer in the middle part of connecting rod (201) to be set with the first sliding block (215), the first sliding block (215) warp First articulated joint (206) and driving cylinder piston rod (207) end are hinged；The second sliding block is set with outside connecting rod (201) other end (214), the second sliding block (214) is hinged through the second articulated joint (213) and one end of connecting shaft (212), connecting shaft (212) other end It is coaxially connected through pull pressure sensor (203) and test cylinder piston rod (202), so that test cylinder piston rod (202), driving Cylinder piston rod (207) and guide rod (210) are linked together by connecting rod (201).
2. a kind of reciprocation sealing multi loading device according to claim 1, it is characterised in that: the table top can The overhead height that support (103) overhead height is higher than table top hold-down support (105) is changed, so that inclined table (101) inclination is fixed Above vibration table (104).
3. a kind of reciprocation sealing multi loading device according to claim 1, it is characterised in that: driving cylinder (208) Make active movement, moved through the first articulated joint (206) driving the first sliding block (215) along driving cylinder piston rod (207) telescopic direction, First sliding block (215) movement drives connecting rod (201) to be axially moved along guide rod (210), drives the second sliding block through connecting rod (201) (214) along test cylinder piston rod (202) telescopic direction movement, the reciprocation sealing Motion loading to test cylinder (jar) (205) is realized.
CN201711163873.4A 2017-11-21 2017-11-21 A kind of reciprocation sealing multi loading device Active CN108051168B (en)

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Publication number Priority date Publication date Assignee Title
CN113252456B (en) * 2021-04-12 2022-10-04 哈尔滨工业大学 Variable-angle eccentric loading test device for truss structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201355304Y (en) * 2009-02-17 2009-12-02 英业达股份有限公司 Vibration simulator
EP2522975A2 (en) * 2011-03-07 2012-11-14 Vestas Wind Systems A/S A wind turbine blade tester
CN204422163U (en) * 2015-02-13 2015-06-24 内蒙古山路光伏应用技术研究有限公司 Photovoltaic module vibration testing machine
CN106198200A (en) * 2016-07-06 2016-12-07 哈尔滨理工大学 A kind of multi-angle compression test fixture bearing heavy duty

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7891249B2 (en) * 2007-08-01 2011-02-22 Seagate Technology Llc Multi-axis vibration method and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201355304Y (en) * 2009-02-17 2009-12-02 英业达股份有限公司 Vibration simulator
EP2522975A2 (en) * 2011-03-07 2012-11-14 Vestas Wind Systems A/S A wind turbine blade tester
CN204422163U (en) * 2015-02-13 2015-06-24 内蒙古山路光伏应用技术研究有限公司 Photovoltaic module vibration testing machine
CN106198200A (en) * 2016-07-06 2016-12-07 哈尔滨理工大学 A kind of multi-angle compression test fixture bearing heavy duty

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